Search results for " marine"

Late Quaternary marine ostracods of the Basque Basin (S Bay of Biscay): taxonomy and distribution

2018

Late Quaternary taxonomy and ecologic and age distributions of ostracods from the Basque Basin (S Bay of Biscay) are described. More than forty-four thousands ostracod specimens have been obtained from one hundred surface samples and core samples from six cores located in shelf and upper bathyal depths and other infrabathyal core as comparative deep reference. A total of 155 species have been taxonomically described, belonging to 67 genera. Most characteristic species (123) have been SEM figured, and ecologic-geographic distributions and ages have been provided for all species. The resulting database will be a useful help for palaeoceanographic and palaeoclimatologic studies of the region.

Preliminary data on antiproliferative effects in haemocyte extracts of the ascidian Styela plicata (Stolidobranchiata, Styelidae)

2008

Carenze conoscitive, spunti per la ricerca, priorità

2014

EFFETTI DELLA PROTEZIONE E DELLA COMPLESSITÀ TOPOGRAFICA SUI POPOLAMENTI BENTONICI DEI REEF A VERMETI

2009

Vermetid reef can be considered a key intertidal habitat of Mediterranean Sea and increasing knowledge about this natural system is important for its conservation. Aims of this study is to assess topography complexity, structure and composition of the benthic assemblages associated to reef formation in a marine protected area highlighting possible effects of the protection.

Terrestrial carbohydrates support freshwater zooplankton during phytoplankton deficiency

2016

Article

Phosphorus limitation enhances parasite impact: feedback effects at the population level

2014

Background Nutrient deficiency affects the growth and population dynamics of consumers. Endoparasites can be seen as consumers that drain carbon (C) or energy from their host while simultaneously competing for limiting resources such as phosphorus (P). Depending on the relative demands of the host and the parasite for the limiting nutrient, intensified resource competition under nutrient limitation can either reduce the parasite’s effect on the host or further reduce the fitness of the nutrient-limited host. So far, knowledge of how nutrient limitation affects parasite performance at the host population level and how this affects the host populations is limited. Results We followed the popu…

Темпоральные аспекты моделирования и прогнозирования в экологии

1986

Межведомственный тематический сборник научных трудов по концептуальным, методологическим и методическим вопросам формализации временных отношений (темпоральности) в биоэкологическом прогнозировании, при моделировании экосистемы и ее биотических элементов. Тематика сборника в определенной мере отражает широкий диапазон и многогранность проблемы темпорализма в биоэкологии.

Охрана, экология и этология животных

1986

В сборнике представлены материалы по фаунистическому составу, рас­пространению и экологии редких видов животных, а также видов, имеющих хозяйственное значение, даются рекомендации по увели­чению численности редких животных.